cat > liveness.yaml << EOF
apiVersion: v1
kind: Pod
metadata:
  name: nginx-pod-with-liveness-probe
spec:
  containers:
  - name: nginx-pod-with-liveness-probe
    image: nginx
    ports:
    - containerPort: 80
    command:
    - /bin/sh
    - -c
    - |
      touch /usr/share/nginx/html/live
      nginx -g "daemon off;"
    livenessProbe:
      initialDelaySeconds: 5 # 1st liveness check after 5 seconds
      periodSeconds: 10 # subsequent liveness checks every 10 seconds
      failureThreshold: 1
      httpGet:
        path: /live
        port: 80

EOF

cat > liveness.yaml << EOF
apiVersion: v1
kind: Pod
metadata:
  name: nginx-pod-with-liveness-probe
spec:
  containers:
  - name: nginx-pod-with-liveness-probe
    image: nginx
    ports:
    - containerPort: 80
    command:
    - /bin/sh
    - -c
    - |
      touch /usr/share/nginx/html/live
      nginx -g "daemon off;"
    livenessProbe:
      initialDelaySeconds: 5 # 1st liveness check after 5 seconds
      periodSeconds: 10 # subsequent liveness checks every 10 seconds
      failureThreshold: 1
      httpGet:
        path: /live
        port: 80

EOF

k delete po nginx-pod-with-liveness-probe --force

k create -f liveness.yaml \
&& watch --differences --interval 1 kubectl get po nginx-pod-with-liveness-probe

k exec -it nginx-pod-with-liveness-probe -- rm /usr/share/nginx/html/live